Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Veratrylamine | HCID 79832 | — |
| Reactant | HCID 46883208 | HCID 46883208 | — |
| Solvent | Trifluoroacetic acid | HCID 6422 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | HCID 25230949 | HCID 25230949 | 9% |
Reaction Steps
A stirred solution of Example 5 (0.055 g, 0.143 mmol) in dimethylacetamide (2 ml) was treated with 3,4-dimethoxybenzylamine (0.22 ml, 1.43 mmol). The solution was heated to 170° C. for 30 min in a microwave reactor. The cooled solution was reduced in vacuo and taken up in neat trifluoroacetic acid (3 ml). The mixture was stirred at 70° C. for 48 h, cooled and reduced in vacuo. The residue was taken up in ethylacetate (25 ml), washed with saturated sodium bicarbonate solution (15 ml), dried over sodium sulfate and reduced in vacuo. Silica gel (10 g) column chromatography (10% MeOH in EtOAc) afforded the title compound as an orange solid in 9% yield, >95% purity. LC-MS m/z=368.0 [M+H]+; RT=2.58; LC-MS method 1. 1H NMR: δH (400 MHz, D6-DMSO) 4.67 (2H, bd), 5.81 (1H, s), 7.23-7.25 (1H, m), 7.33-7.36 (1H, m), 7.51 (2H, b), 7.79 (1H, bd), 8.09 (1H, bd), 8.38-8.62 (4H, bm)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09120807B2 |
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| Source dataset | uspto-grants-2015_09 |
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| ORD ID | ord-4021adcb5553492391ed59a3160e7180 |
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| Source note | uspto-grants-2015_09 |
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